# 1 1 2 3  5  8
n1 = 1
n2 = 1

for n in range(1,9):
    print(f"第{n}个数为：",end="")
    # 如果n为1，2则值为1
    if n ==1 or n==2:
        print(n1)
    # 其他，值前两个数的和
    else:
        sum = n1 + n2 # 第三个数
        n1 = n2 # 改变前两个数
        n2 = sum
        print(sum)

# 字符串的字符个数
a = "askgjvadjg"
list1 = list(a)
count = 0
for i in list1:
    count += 1

print(count)

for j in a:
    print(j,end=",")